Tire tread



FIG. 1 is a perspective view of a tire tread;

FIG. 2 is a front elevation view thereof; and

FIG. 3 is an enlarged view of portion 3 in FIG. 2; and,

FIG. 4 is a side view thereof.

Broken lines in the figures are for illustrative purposes only and form no part of the claimed invention. 

CLAIM The ornamental design for a tire tread, as shown and described. 